Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2007-12-04
2007-12-04
Korzuch, William R. (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S044150, C369S053190, C359S824000
Reexamination Certificate
active
10746290
ABSTRACT:
An actuator of an optical disk system and an apparatus producing a signal for driving the actuator, the actuator including a light source, with which information is recorded on or reproduced from an optical disk surface. In the actuator, an inner focusing coil and an outer focusing coil are installed near an inner boundary and an outer boundary, respectively, of the optical disk surface. A first signal wire is connected to a first port of the inner focusing coil and transmits an inner coil signal. A second signal wire is connected to a first port of the outer focusing coil and transmits an outer coil signal. A common signal wire is connected to a second port of the inner focusing coil and a second port of the outer focusing coil and transmits a common reference signal. Thus, a simple, inexpensive 8-wire actuator can be obtained.
REFERENCES:
patent: 4556291 (1985-12-01), Chen
patent: 5905255 (1999-05-01), Wakabayashi et al.
patent: 2002/0006091 (2002-01-01), Ma et al.
patent: 2003/0039185 (2003-02-01), Ikawa et al.
patent: 2003/0072224 (2003-04-01), Ando
patent: 2001-266394 (2001-09-01), None
patent: 2001-325739 (2001-11-01), None
patent: 2002-150584 (2002-05-01), None
patent: WO 03/088220 (2003-10-01), None
Search Report issued in European Patent Application No. 03258229.8 on Mar. 8, 2007.
Kim Kwan-Joon
Kim Seok-Jung
Ma Byung-In
Ryu Shi-yang
Goma Tawfik
Korzuch William R.
Samsung Electronics Co,. Ltd.
Stein, McEwen & Bui LLP
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